Bestem USA manufactures carbon fiber side panels for the Ducati Diavel V4 (2023 model year) in 100% pre-preg Toray carbon fiber, autoclave-cured in matched-metal molds and finished in a matte plain weave. Both the upper side panels and the small side panel are direct-fit replacements, stocked in our Atlanta, GA warehouse and backed by a lifetime warranty against UV (sun-ray) yellowing.

Which carbon fiber side panels are available for the Ducati Diavel V4?

Two panels cover the Diavel V4's midsection, and both are available in matching matte plain weave:

Both use a plain weave under a matte clear coat, which suits the Diavel V4's blacked-out, technical styling. The plain weave reads tight and uniform at close range, and the matte finish keeps reflections down so the carbon texture — not glare — does the talking.

Why upgrade the Diavel V4's side panels to carbon fiber?

The stock side panels are molded plastic. Swapping them to carbon fiber does three things:

How are Bestem carbon fiber side panels made?

Every Bestem panel is 100% pre-preg Toray carbon fiber, cured in an autoclave inside matched-metal molds. Pre-preg means the resin is precisely impregnated into the Toray fabric at the material stage, and autoclave curing under heat and pressure consolidates the laminate with minimal voids and consistent wall thickness. Matched-metal tooling is what makes fitment repeatable: the panel that ships today is dimensionally identical to the one that ships next month.

This is the same autoclave + 100% pre-preg construction that premium European carbon makers such as Ilmberger built their reputation on — Bestem uses that same aerospace-grade process, then adds a superior UV-resistant coating on top. It's also the same process running on the OEM lines in our production facility, which manufactures OEM carbon fiber components for major brands including Polaris and Triumph. Bestem has been manufacturing carbon fiber since 2005 and supplies OEM carbon parts to car and motorcycle manufacturers — the aftermarket panels you bolt on come off the same kind of tooling, not a secondary line.

If you've heard that Chinese-made carbon is still hand-laid wet-lay work, that's an outdated stereotype. Hand-laid construction is effectively obsolete for quality carbon parts. One hundred percent of Bestem carbon is pre-preg, autoclave-cured, and metal-molded — quality comes from the process, not the country.

Do carbon fiber side panels turn yellow in the sun?

Yes — UV yellowing is the single most common defect riders see on carbon fiber bodywork. Standard clear coats amber and cloud after roughly 1,000 hours of UV exposure, and on a bike that lives outdoors the side panels catch direct sun every ride.

Bestem's proprietary UV-resistant clear coat is rated to approximately 3,000 hours of UV exposure — about three times the resistance of standard OEM coating — and every panel carries a lifetime warranty against sun-ray (UV) yellowing.

That warranty is why the matte finish on these panels stays matte charcoal-black instead of drifting toward amber over seasons of riding.

How do the side panels install on the Diavel V4?

Both panels are designed as direct replacements for the stock pieces, using the factory mounting points. The swap is straightforward with basic hand tools: remove the stock panels, transfer any factory hardware or clips as needed, and bolt the carbon panels on. No cutting or drilling. Because the panels are metal-molded, hole positions and edge profiles are consistent — the fitment you see in the product photos is the fitment you get. To care for the matte finish, wash with mild soap and water and skip abrasive polishes, which can burnish matte surfaces shiny.

What other carbon parts complete the Diavel V4?

Side panels are usually the second or third piece riders add. In the same matte plain weave, you can extend the carbon across the whole bike:

All of it ships from stock in our Atlanta, GA warehouse, daily and worldwide, and our staff answers the phone live every business day if you want to confirm fitment before ordering. Customer satisfaction is the top priority of our business — that has been the model since 2005.

FAQ

Do these side panels fit the Ducati Diavel V4?

Yes. Both the upper side panels (CBDU-DVL23-SFRU-F) and the small side panel (CBDU-DVL23-SPNS-F) are designed specifically for the 2023 Ducati Diavel V4 and mount to the factory points. Check the individual product pages for full model-year fitment details.

Will the matte carbon finish fade or turn yellow?

Bestem panels use a proprietary UV-resistant coating rated to roughly 3,000 hours of UV exposure versus about 1,000 hours for standard OEM clear coat, and they carry a lifetime warranty against UV (sun-ray) yellowing.

Are Bestem side panels pre-preg or wet-lay carbon?

Pre-preg, always. Every panel is 100% pre-preg Toray carbon fiber, autoclave-cured in matched-metal molds — no hand-laid, wet-lay, or resin-infused construction anywhere in the line.

Is the weave plain or twill?

These Diavel V4 panels are plain weave with a matte finish, giving a tight, uniform checkerboard pattern that matches Ducati's own matte carbon aesthetic.

Where do orders ship from?

All parts are stocked in Bestem's Atlanta, GA warehouse and ship daily, worldwide. Live phone support is available every business day.